/**************************************************************************** * Copyright (C) 2003-2006 by XGI Technology, Taiwan. * * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation on the rights to use, copy, modify, merge, * publish, distribute, sublicense, and/or sell copies of the Software, * and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * XGI AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. ***************************************************************************/ #include "xgi_drv.h" #include "xgi_regs.h" #include "xgi_misc.h" #include "xgi_cmdlist.h" static void xgi_emit_flush(struct xgi_info * info, bool stop); static void xgi_emit_nop(struct xgi_info * info); static unsigned int get_batch_command(enum xgi_batch_type type); static void triggerHWCommandList(struct xgi_info * info); static void xgi_cmdlist_reset(struct xgi_info * info); /** * Graphic engine register (2d/3d) acessing interface */ static inline void dwWriteReg(struct drm_map * map, u32 addr, u32 data) { #ifdef XGI_MMIO_DEBUG DRM_INFO("mmio_map->handle = 0x%p, addr = 0x%x, data = 0x%x\n", map->handle, addr, data); #endif DRM_WRITE32(map, addr, data); } int xgi_cmdlist_initialize(struct xgi_info * info, size_t size, struct drm_file * filp) { struct xgi_mem_alloc mem_alloc = { .location = XGI_MEMLOC_NON_LOCAL, .size = size, }; int err; err = xgi_alloc(info, &mem_alloc, filp); if (err) { return err; } info->cmdring.ptr = xgi_find_pcie_virt(info, mem_alloc.hw_addr); info->cmdring.size = mem_alloc.size; info->cmdring.ring_hw_base = mem_alloc.hw_addr; info->cmdring.last_ptr = NULL; info->cmdring.ring_offset = 0; return 0; } /** * get_batch_command - Get the command ID for the current begin type. * @type: Type of the current batch * * See section 3.2.2 "Begin" (page 15) of the 3D SPG. * * This function assumes that @type is on the range [0,3]. */ unsigned int get_batch_command(enum xgi_batch_type type) { static const unsigned int ports[4] = { 0x30 >> 2, 0x40 >> 2, 0x50 >> 2, 0x20 >> 2 }; return ports[type]; } int xgi_submit_cmdlist(struct drm_device * dev, void * data, struct drm_file * filp) { struct xgi_info *const info = dev->dev_private; const struct xgi_cmd_info *const pCmdInfo = (struct xgi_cmd_info *) data; const unsigned int cmd = get_batch_command(pCmdInfo->type); u32 begin[4]; begin[0] = (cmd << 24) | BEGIN_VALID_MASK | (BEGIN_BEGIN_IDENTIFICATION_MASK & info->next_sequence); begin[1] = BEGIN_LINK_ENABLE_MASK | pCmdInfo->size; begin[2] = pCmdInfo->hw_addr >> 4; begin[3] = 0; if (info->cmdring.last_ptr == NULL) { const unsigned int portOffset = BASE_3D_ENG + (cmd << 2); /* Enable PCI Trigger Mode */ dwWriteReg(info->mmio_map, BASE_3D_ENG + M2REG_AUTO_LINK_SETTING_ADDRESS, (M2REG_AUTO_LINK_SETTING_ADDRESS << 22) | M2REG_CLEAR_COUNTERS_MASK | 0x08 | M2REG_PCI_TRIGGER_MODE_MASK); dwWriteReg(info->mmio_map, BASE_3D_ENG + M2REG_AUTO_LINK_SETTING_ADDRESS, (M2REG_AUTO_LINK_SETTING_ADDRESS << 22) | 0x08 | M2REG_PCI_TRIGGER_MODE_MASK); /* Send PCI begin command */ dwWriteReg(info->mmio_map, portOffset, begin[0]); dwWriteReg(info->mmio_map, portOffset + 4, begin[1]); dwWriteReg(info->mmio_map, portOffset + 8, begin[2]); dwWriteReg(info->mmio_map, portOffset + 12, begin[3]); } else { DRM_DEBUG("info->cmdring.last_ptr != NULL\n"); if (pCmdInfo->type == BTYPE_3D) { xgi_emit_flush(info, FALSE); } info->cmdring.last_ptr[1] = cpu_to_le32(begin[1]); info->cmdring.last_ptr[2] = cpu_to_le32(begin[2]); info->cmdring.last_ptr[3] = cpu_to_le32(begin[3]); DRM_WRITEMEMORYBARRIER(); info->cmdring.last_ptr[0] = cpu_to_le32(begin[0]); triggerHWCommandList(info); } info->cmdring.last_ptr = xgi_find_pcie_virt(info, pCmdInfo->hw_addr); drm_fence_flush_old(info->dev, 0, info->next_sequence); return 0; } /* state: 0 - console 1 - graphic 2 - fb 3 - logout */ int xgi_state_change(struct xgi_info * info, unsigned int to, unsigned int from) { #define STATE_CONSOLE 0 #define STATE_GRAPHIC 1 #define STATE_FBTERM 2 #define STATE_LOGOUT 3 #define STATE_REBOOT 4 #define STATE_SHUTDOWN 5 if ((from == STATE_GRAPHIC) && (to == STATE_CONSOLE)) { DRM_INFO("Leaving graphical mode (probably VT switch)\n"); } else if ((from == STATE_CONSOLE) && (to == STATE_GRAPHIC)) { DRM_INFO("Entering graphical mode (probably VT switch)\n"); xgi_cmdlist_reset(info); } else if ((from == STATE_GRAPHIC) && ((to == STATE_LOGOUT) || (to == STATE_REBOOT) || (to == STATE_SHUTDOWN))) { DRM_INFO("Leaving graphical mode (probably X shutting down)\n"); } else { DRM_ERROR("Invalid state change.\n"); return -EINVAL; } return 0; } int xgi_state_change_ioctl(struct drm_device * dev, void * data, struct drm_file * filp) { struct xgi_state_info *const state = (struct xgi_state_info *) data; struct xgi_info *info = dev->dev_private; return xgi_state_change(info, state->_toState, state->_fromState); } void xgi_cmdlist_reset(struct xgi_info * info) { info->cmdring.last_ptr = NULL; info->cmdring.ring_offset = 0; } void xgi_cmdlist_cleanup(struct xgi_info * info) { if (info->cmdring.ring_hw_base != 0) { /* If command lists have been issued, terminate the command * list chain with a flush command. */ if (info->cmdring.last_ptr != NULL) { xgi_emit_flush(info, FALSE); xgi_emit_nop(info); } xgi_waitfor_pci_idle(info); (void) memset(&info->cmdring, 0, sizeof(info->cmdring)); } } static void triggerHWCommandList(struct xgi_info * info) { static unsigned int s_triggerID = 1; dwWriteReg(info->mmio_map, BASE_3D_ENG + M2REG_PCI_TRIGGER_REGISTER_ADDRESS, 0x05000000 + (0x0ffff & s_triggerID++)); } /** * Emit a flush to the CRTL command stream. * @info XGI info structure * * This function assumes info->cmdring.ptr is non-NULL. */ void xgi_emit_flush(struct xgi_info * info, bool stop) { const u32 flush_command[8] = { ((0x10 << 24) | (BEGIN_BEGIN_IDENTIFICATION_MASK & info->next_sequence)), BEGIN_LINK_ENABLE_MASK | (0x00004), 0x00000000, 0x00000000, /* Flush the 2D engine with the default 32 clock delay. */ M2REG_FLUSH_ENGINE_COMMAND | M2REG_FLUSH_2D_ENGINE_MASK, M2REG_FLUSH_ENGINE_COMMAND | M2REG_FLUSH_2D_ENGINE_MASK, M2REG_FLUSH_ENGINE_COMMAND | M2REG_FLUSH_2D_ENGINE_MASK, M2REG_FLUSH_ENGINE_COMMAND | M2REG_FLUSH_2D_ENGINE_MASK, }; const unsigned int flush_size = sizeof(flush_command); u32 *batch_addr; u32 hw_addr; unsigned int i; /* check buf is large enough to contain a new flush batch */ if ((info->cmdring.ring_offset + flush_size) >= info->cmdring.size) { info->cmdring.ring_offset = 0; } hw_addr = info->cmdring.ring_hw_base + info->cmdring.ring_offset; batch_addr = info->cmdring.ptr + (info->cmdring.ring_offset / 4); for (i = 0; i < (flush_size / 4); i++) { batch_addr[i] = cpu_to_le32(flush_command[i]); } if (stop) { *batch_addr |= cpu_to_le32(BEGIN_STOP_STORE_CURRENT_POINTER_MASK); } info->cmdring.last_ptr[1] = cpu_to_le32(BEGIN_LINK_ENABLE_MASK | (flush_size / 4)); info->cmdring.last_ptr[2] = cpu_to_le32(hw_addr >> 4); info->cmdring.last_ptr[3] = 0; DRM_WRITEMEMORYBARRIER(); info->cmdring.last_ptr[0] = cpu_to_le32((get_batch_command(BTYPE_CTRL) << 24) | (BEGIN_VALID_MASK)); triggerHWCommandList(info); info->cmdring.ring_offset += flush_size; info->cmdring.last_ptr = batch_addr; } /** * Emit an empty command to the CRTL command stream. * @info XGI info structure * * This function assumes info->cmdring.ptr is non-NULL. In addition, since * this function emits a command that does not have linkage information, * it sets info->cmdring.ptr to NULL. */ void xgi_emit_nop(struct xgi_info * info) { info->cmdring.last_ptr[1] = cpu_to_le32(BEGIN_LINK_ENABLE_MASK | (BEGIN_BEGIN_IDENTIFICATION_MASK & info->next_sequence)); info->cmdring.last_ptr[2] = 0; info->cmdring.last_ptr[3] = 0; DRM_WRITEMEMORYBARRIER(); info->cmdring.last_ptr[0] = cpu_to_le32((get_batch_command(BTYPE_CTRL) << 24) | (BEGIN_VALID_MASK)); triggerHWCommandList(info); info->cmdring.last_ptr = NULL; } void xgi_emit_irq(struct xgi_info * info) { if (info->cmdring.last_ptr == NULL) return; xgi_emit_flush(info, TRUE); }